[RE-wrenches] crumbling ballast blocks

[Kirk Herander]

All,

I have a 6 year old ballasted roof system in which about 50% of the solid
cap blocks(16"L x 8"w x 4"D) are cracked and crumbing, some are close to
rubble. I assume it was a bad batch, but has anyone seen this before? What
might be the preventive remedy in the future? A coating of some sort?

 

Kirk Herander

Owner|Principal, VT Solar, LLC 

Celebrating our 27th Anniversary 1991-2018

www.vermontsolarnow.com

dba Vermont Solar Engineering

NABCEPTM  2003 Inaugural Certificant

VT RE Incentive Program Partner

802.863.1202

 

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20180627/a5e6ab37/attachment.htm>